NumberResearch Membership · Data 09/26/2026

Recent prefix assignments

360 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, last 30 days
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 28
ONVOY, LLC - CA 26
NEW CINGULAR WIRELESS PCS, LLC - IL 26
Rogers Communications Canada Inc. (Wireless) 23
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2002-09-19 415-690 1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 4 holders which blocks → T-MOBILE USA, INC. 6529 BELVEDERE CA
2002-09-19 502-512 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - KY 4369 TAYLORSVL KY
2002-09-19 502-513 0–9 XXXall 10 · 6 holders which blocks → PAETEC ITEL, LLC 829J SHELBYVL KY
2002-09-19 502-514 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - KY 4369 OWENTON KY
2002-09-19 502-517 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - KY 4369 LAWRENCEBG KY
2002-09-19 502-518 0–9 XXXall 10 · 5 holders which blocks → PAETEC ITEL, LLC 829J EMINENCE KY
2002-09-19 502-519 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - KY 4369 CARROLLTON KY
2002-09-19 509-643 0–9 XXXall 10 · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SUNNYSIDE WA
2002-09-19 510-213 4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → T-MOBILE USA, INC. 6529 OKLD FRTVL CA
2002-09-19 510-417 1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 ELSBR-PINL CA
2002-09-19 510-672 5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 RICHMOND CA
2002-09-19 510-717 7XXX which blocks → T-MOBILE USA, INC. 6529 OKLD BKLY CA
2002-09-19 540-238 0XXX2XXX3XXX4XXX5XXX6XXX7XXX · 4 holders which blocks → OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 ROCKYMOUNT VA
2002-09-19 559-813 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → T-MOBILE USA, INC. 6529 FOWLER CA
2002-09-19 559-940 1XXX6XXX7XXX8XXX · 4 holders which blocks → T-MOBILE USA, INC. 6529 CLOVIS CA
2002-09-19 559-942 1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → T-MOBILE USA, INC. 6529 CARUTHERS CA
2002-09-19 606-467 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON 9690 ASHLAND KY
2002-09-19 619-519 3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks → T-MOBILE USA, INC. 6529 CORONADO CA
2002-09-19 626-715 not yet reported which blocks → T-MOBILE USA, INC. 6529 LA PUENTE CA
2002-09-19 626-731 4XXX5XXX6XXX7XXX which blocks → T-MOBILE USA, INC. 6529 SNGBLCNN CA
2002-09-19 626-841 4XXX5XXX6XXX7XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 MONROVIA CA
2002-09-19 626-905 7XXX which blocks → T-MOBILE USA, INC. 6529 AZUSA CA
2002-09-19 626-922 not yet reported which blocks → T-MOBILE USA, INC. 6529 COVINA CA
2002-09-19 631-816 2XXX which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 YAPHANK NY
2002-09-19 631-965 0–9 XXXall 10 · 2 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RIVERHEAD NY
2002-09-19 650-305 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → T-MOBILE USA, INC. 6529 LOS ALTOS CA
2002-09-19 650-440 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → T-MOBILE USA, INC. 6529 HALFMOONBY CA
2002-09-19 650-861 3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → T-MOBILE USA, INC. 6529 MT VIEW CA
2002-09-19 707-771 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → T-MOBILE USA, INC. 6529 BENICIA CA
2002-09-19 714-717 not yet reported which blocks → T-MOBILE USA, INC. 6529 HUNTITNBCH CA
2002-09-19 734-709 0–9 XXXwhole prefix which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 ANN ARBOR MI
2002-09-19 760-680 2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 VTVL HSPR CA
2002-09-19 760-701 1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → T-MOBILE USA, INC. 6529 EL MIRAGE CA
2002-09-19 850-844 1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 2 holders which blocks → CENTURYLINK OF FLORIDA, INC. (CENTRAL) 0340 BONIFAY FL
2002-09-19 850-845 0–9 XXXall 10 · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - FL 4802 CHIPLEY FL
2002-09-19 850-846 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - FL 4802 MADISON FL
2002-09-19 863-657 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - FL 4802 AVON PARK FL
2002-09-19 863-658 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SEBRING FL
2002-09-19 863-659 1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - FL 4802 LAKEPLACID FL
2002-09-19 864-399 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC 6398 SIMPSONVL SC
2002-09-19 910-725 2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K SOUTHEPINS NC
2002-09-19 985-269 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → METROPCS, INC. 5562 HAMMOND LA
2002-09-18 252-579 0XXX1XXX8XXX · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - NC 3235 PLYMOUTH NC
2002-09-18 276-722 1XXX2XXX3XXX4XXX7XXX8XXX · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 6827 ROCKY GAP VA
2002-09-18 339-203 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 WAKEFIELD MA
2002-09-18 413-244 0–9 XXXwhole prefix which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 SPRINGFLD MA
2002-09-18 435-565 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - UT 3231 PARK CITY UT
2002-09-18 517-759 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ADRIAN MI
2002-09-18 615-556 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MURFREESBO TN
2002-09-18 774-272 0–9 XXXall 10 · 5 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 6387 AUBURN MA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.